error proofing (device)
What is Poka Yokel or Error Proofing?
Poka means inadvertent erro,and”Yoke ”
means prevenlion.Poka Yoke means implemening
simple and inexpensive devices that help
operaiors avoid misiakes in their work caused by
ihe wrong parts leaving out a part ,installing a
parl backwards,etc.
The types of Error Proofing
・Shuidown ：They are the most poweeful Erro
Proofing devices. For example,a machine
will not siart if a work piece is set incorrectly.
・Warning ：They alert us to something
abnormal by a buzzer or light.
A good Error Proofing:
・Simple ,with long life and low maintenance
・High reliability
・lnexpensive
・Designed for the workplace situation.
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